Pouring compression device

Abstract

The utility model is suitable for the technical field of civil engineering, and provides a pouring compression device which comprises a rack, a pressing head, a mold, a block-up structure, a plurality of longitudinal bars and at least one stirrup, the mold is installed on the rack, and a cavity with an opening in one end is formed in the mold. The block-up structure is installed on the side, provided with the opening, of the mold and provided with a via hole, and the inner diameter of the via hole is smaller than that of the opening. The multiple longitudinal ribs are inserted into the cavity and distributed at intervals in the circumferential direction of the cavity to form an annular structure, the stirrups surround the periphery of the annular structure, and the pressing head is movably connected with the rack and can penetrate through the via hole to stretch into or move out of the annular structure. When concrete is poured into the cavity and the concrete in the cavity is compressed through the pressure head, the concrete in the cavity can form a concrete column together with the longitudinal bars and the stirrups, so that the structural strength of the concrete column can be effectively improved.

Description

Technical Field

[0001] The present application relates to the technical field of civil engineering, and more specifically, to a casting compression device. Background Art

[0002] In modern construction projects, concrete is a widely used building material, and its structural strength is a key factor in ensuring the safety, durability and reliability of buildings. A common way to use concrete is to pour and compress it to form a concrete column with strong structural strength. The existing common pouring and compression method is usually to pour concrete in a mold, and then compress it with a pressure head to finally obtain a concrete column. However, the structural strength of the concrete column obtained by this pouring and compression method is relatively low. Utility Model Content

[0003] The purpose of the embodiments of the present application is to provide a casting and compression device, aiming to solve the technical problem of low structural strength of concrete columns obtained by the concrete casting and compression method in the prior art.

[0004] To achieve the above-mentioned purpose, the technical solution adopted in the present application is: to provide a casting compression device, including a frame, a pressure head, a mold, a padding structure, a plurality of longitudinal reinforcements and at least one stirrup, the mold being installed on the frame, and a cavity with an opening at one end being formed on the mold; the padding structure being installed on a side of the mold where the opening is set, the padding structure having a through hole, and the inner diameter of the through hole is smaller than the inner diameter of the opening; a plurality of the longitudinal reinforcements are inserted into the cavity, and a plurality of the longitudinal reinforcements are spaced apart along the circumferential direction of the cavity to form an annular structure, the stirrups are arranged around the outer circumference of the annular structure, the pressure head is movably connected to the frame, and the pressure head can extend into or move out of the annular structure through the through hole.

[0005] In a possible design, on a projection plane perpendicular to the axis of the annular structure, the projection of the stirrup is annular, and the outer diameter of the projection of the stirrup is equal to the inner diameter of the through hole.

[0006] In a possible design, the pressure head is provided with an avoidance groove, and the number of the avoidance grooves is multiple, and the multiple avoidance grooves are arranged in a one-to-one correspondence with the multiple longitudinal ribs; the avoidance groove is used for allowing the corresponding longitudinal ribs to pass through when the pressure head moves.

[0007] In a possible design, the inner diameter of the projection of the stirrup is equal to the outer diameter of the pressure head.

[0008] In a possible design, a side of the cushioning structure facing the mold has a positioning groove, and one end of the mold where the opening is arranged is inserted into the positioning groove.

[0009] In a possible design, the raising structure includes a plurality of connection blocks, the plurality of connection blocks are distributed in a ring array, two adjacent connection blocks are detachably connected, and the plurality of connection blocks are arranged around to form the via hole.

[0010] In a possible design, there are two connection blocks, the two connection blocks are buckled with each other, and the two connection blocks surround and form the via hole.

[0011] In a possible design, there are multiple molds, and the multiple molds are arranged in sequence along the axial direction of the annular structure. Two adjacent molds are detachably connected, and the cavities of two adjacent molds are interconnected. The raising structure is detachably installed on the side of the opening of the mold closest to the pressure head.

[0012] In a possible design, the mold includes a plurality of modules, the plurality of modules are distributed in a ring array, two adjacent modules are detachably connected, and the plurality of modules are arranged to surround the mold cavity.

[0013] In a possible design, the stirrups are spirally wrapped around the outer circumference of the annular structure; or, the stirrups are annular structures, and there are multiple stirrups, which are arranged at intervals along the axial direction of the annular structure.

[0014] The beneficial effect of the casting and compression device provided by the present application is that compared with the prior art, the casting and compression device of the present application, by surrounding stirrups on the outer periphery of the annular structure formed by multiple longitudinal bars, and by installing a cushioning structure on one side of the opening set in the mold, because the inner diameter of the through hole of the cushioning structure is smaller than the inner diameter of the opening, the cushioning structure can be used to block at least a portion of the area between the inner wall of the opening and the pressure head. In this way, when concrete is poured into the cavity and the concrete in the cavity is compressed by the pressure head, the concrete in the cavity can form a concrete column together with the multiple longitudinal bars and stirrups, so that the structural strength of the concrete column can be effectively improved. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0016] Figure 1 This is a schematic structural diagram of a pouring compression device provided by an embodiment of the present application from one perspective;

[0017] Figure 2It is an exploded schematic diagram of some parts of a casting compression device provided by an embodiment of the present application;

[0018] Figure 3 yes Figure 1 A schematic diagram of a partial cross section of the pouring compression device along the AA direction;

[0019] Figure 4 It is a structural schematic diagram of a cushioning structure of a pouring and compression device provided by an embodiment of the present application;

[0020] Figure 5 is a schematic structural diagram of a pouring compression device provided by another embodiment of the present application from one perspective;

[0021] Figure 6 is a partial half-section schematic diagram of a pouring compression device provided by another embodiment of the present application;

[0022] Figure 7 It is an exploded schematic diagram of some parts of a casting compression device provided in another embodiment of the present application.

[0023] The reference numerals in the above drawings are as follows:

[0024] 10. Frame; 11. Bottom beam; 12. Top beam; 13. Side beam; 14. Connecting plate;

[0025] 20. Pressure head; 21. Avoidance groove; 22. Piston;

[0026] 30. mold; 31. module; 32. cavity; 33. opening; 34. connection port;

[0027] 40. padding structure; 41. connection block; 42. via hole; 43. positioning groove;

[0028] 51. Longitudinal reinforcement; 52. Stirrups. DETAILED DESCRIPTION

[0029] In order to make the technical problems, technical solutions and beneficial effects to be solved by the present application more clearly understood, the present application is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present application and are not used to limit the present application.

[0030] It should be noted that when an element is referred to as being "fixed to" or "disposed on" another element, it can be directly on the other element or indirectly on the other element. When an element is referred to as being "connected to" another element, it can be directly connected to the other element or indirectly connected to the other element.

[0031] It should be understood that the orientation or position relationship indicated by terms such as "length", "width", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside" and "outside" are based on the orientation or position relationship shown in the drawings and are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the structure or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present application.

[0032] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of the features. In the description of this application, the meaning of "plurality" is two or more, unless otherwise clearly and specifically defined.

[0033] Finally, it is worth mentioning that in the drawings of the embodiments of the present application, the lead with a solid arrow points to the structure itself, and the arrow with a dot points to an area (such as a cavity, an opening or a groove, etc.).

[0034] In order to illustrate the technical solution described in this application, a detailed description is given below in conjunction with specific drawings and embodiments.

[0035] like Figures 1 to 4 As shown, an embodiment of the present application provides a casting compression device, including a frame 10, a pressure head 20, a mold 30, a cushioning structure 40, a plurality of longitudinal ribs 51 and at least one stirrup 52. The mold 30 is mounted on the frame 10, and a cavity 32 with an opening 33 at one end is formed on the mold 30. The cushioning structure 40 is mounted on a side of the mold 30 where the opening 33 is provided, and the cushioning structure 40 has a through hole 42, and the inner diameter of the through hole 42 is smaller than the inner diameter of the opening 33. A plurality of longitudinal ribs 51 are inserted into the cavity 32, and the plurality of longitudinal ribs 51 are spaced apart along the circumferential direction of the cavity 32 to form an annular structure, and the stirrup 52 surrounds the outer periphery of the annular structure, the pressure head 20 is movably connected to the frame 10, and the pressure head 20 can pass through the through hole 42 to extend into or move out of the annular structure.

[0036] Compared with the related art, the casting and compression device of the embodiment of the present application forms a frame with strong stability by surrounding the hoop reinforcement 52 on the outer periphery of the annular structure formed by multiple longitudinal reinforcements 51, and installing a cushioning structure 40 on one side of the mold 30 where the opening 33 is set. Since the inner diameter of the through hole 42 of the cushioning structure 40 is smaller than the inner diameter of the opening 33, at least a part of the area between the inner wall of the opening 33 and the pressure head 20 can be blocked by the cushioning structure 40. In this way, when concrete is poured into the cavity 32 and the concrete in the cavity 32 is compressed by the pressure head 20, the concrete in the cavity 32 can form a concrete column together with the multiple longitudinal reinforcements 51 and the hoop reinforcement 52. In this way, the structural strength of the concrete column can be effectively improved.

[0037] In the embodiment of the present application, the pressure head 20 is connected to a driving device, which may be an external driving device, or the pouring compression device may include a driving device, and the driving device is in transmission connection with the pressure head 20. The driving device may include a linear motor or a hydraulic jack, etc., which can drive the pressure head 20 to move. For example, Figure 1 or Figure 2 As shown, the driving device includes a hydraulic jack, which includes an oil pump (not shown in the figure), an oil cylinder (not shown in the figure) and a piston 22. The piston 22 is movably installed in the oil cylinder, one end of the piston 22 extends out of the oil cylinder and is connected to the pressure head 20. The oil pump is connected to the oil cylinder, and the oil pump is connected to an oil pressure system (or a hydraulic system). The oil pump delivers hydraulic oil in the oil pressure system to the oil cylinder to drive the piston 22 to move in the oil cylinder, thereby driving the pressure head 20 to move. Optionally, the piston 22 and the pressure head 20 can be connected by welding, screwing or any other method, or the piston 22 and the pressure head 20 are made into an integrated structure by an integral molding method, which is not limited here.

[0038] Optionally, the frame 10 can be made of a material with high structural strength, so that the frame 10 can provide sufficient reaction force for the pressure head 20 during the compression of concrete. Optionally, the frame 10 is made of steel, specifically Q345 steel. The frame 10 is used to be installed on the ground or other work surfaces with high structural strength. For ease of description, the following text is taken as an example that the frame 10 is installed on the ground. Optionally, the frame 10 is anchored to the ground to improve the installation stability of the frame 10.

[0039] Optionally, the longitudinal reinforcement 51 and the stirrups 52 may be made of steel bars.

[0040] In some embodiments, the frame 10 can be arranged horizontally, vertically, or tilted. For ease of description, the following description is based on the vertical arrangement of the frame 10. When the frame 10 is arranged vertically, the mold 30 is installed at the bottom of the frame 10, and the pressing head 20 is installed at the top of the frame 10, and the pressing head 20 is located directly above the mold 30. For example, Figure 1 or Figure 2 As shown, the frame 10 includes a bottom beam 11 and a top beam 12, and the bottom beam 11 and the top beam 12 are connected by two side beams 13 arranged at intervals, and the top beam 12, the bottom beam 11 and the two side beams 13 are arranged to form a working area. The mold 30 is installed on the bottom beam 11 and is located above the bottom beam 11, and the pressure head 20 is installed on the top beam 12 and is located below the top beam 12. The bottom beam 11, the top beam 12 and the side beams 13 can all be made of I-beams. Optionally, a grid-like reinforcing rib structure is provided on the side beam 13, and the reinforcing ribs can also be made of steel, so that the structural strength of the frame 10 can be effectively improved. According to finite element analysis and calculation, the frame 10 can withstand a force of at least 150 tons, and the deformation of the reaction frame can be controlled within 1 mm.

[0041] In the embodiment of the present application, the mold cavity 32 may be cylindrical, prismatic or other irregular cylindrical shapes, and the mold cavity 32 has a central axis parallel to its own length direction. A plurality of longitudinal ribs 51 are spaced apart along the circumferential direction of the mold cavity 32 to form an annular structure, specifically, a plurality of longitudinal ribs 51 are spaced apart around the central axis of the mold cavity 32 to form an annular structure, and the central axis of the mold cavity 32 is also the axis of the annular structure. Each longitudinal rib 51 is parallel to the central axis of the mold cavity 32.

[0042] In one possible design, Figure 3 As shown, on a projection plane perpendicular to the axis of the annular structure, the projection of the stirrup 52 is annular, and the outer diameter of the projection of the stirrup 52 is equal to the inner diameter of the through hole 42 .

[0043] According to the above technical solution, the padding structure 40 can block the area of ​​the opening 33 corresponding to the area between the stirrup 52 and the inner wall of the cavity 32, that is, the padding structure 40 blocks a portion of the opening 33, which is just opposite to the area between the stirrup 52 and the inner wall of the cavity 32. When the pressure head 20 compresses the concrete in the annular structure, the padding structure 40 can provide a certain pressure to the concrete between the annular structure and the inner wall of the cavity 32, so that most or even all of the concrete in the cavity 32 can be compacted, which can effectively improve the structural strength of the concrete column.

[0044] In some optional embodiments, the stirrup 52 is spirally wound around the outer circumference of the annular structure. Alternatively, the stirrup 52 is an annular structure, and there are multiple stirrups 52, which are spaced apart along the axial direction of the annular structure.

[0045] According to the above technical solution, the stirrups 52 can play a certain restraining role on the multiple longitudinal bars 51, so that the structural stability of the annular structure formed by the multiple longitudinal bars 51 is stronger, which is beneficial to improving the structural strength of the concrete column produced by the casting compression device.

[0046] Alternatively, if Figure 2 and Figure 3 As shown, the stirrup 52 can be formed by spirally forming a long steel bar. The diameter of the steel bar used to make the stirrup 52 is D1, the diameter of the steel bar used to make the longitudinal bar 51 is D2, and the distance between the axis of each longitudinal bar 51 and the central axis of the cavity 32 is R1. Then, the inner diameter of the through hole 42 is specifically equal to 2*D1+D2+2*R1.

[0047] In one possible design, Figure 3 As shown, the pressure head 20 is provided with a plurality of avoidance grooves 21 , and the plurality of avoidance grooves 21 are provided in one-to-one correspondence with the plurality of longitudinal ribs 51 ; the avoidance grooves 21 are used for allowing the corresponding longitudinal ribs 51 to pass through when the pressure head 20 moves.

[0048] According to the above technical solution, by setting the avoidance groove 21, when the pressure head 20 extends into the annular structure, the outer peripheral surface of the pressure head 20 can be closer to the stirrup 52 to reduce the gap between the pressure head 20 and the stirrup 52. In this way, the area of ​​the pressure head 20 acting on the concrete in the cavity 32 can be increased, which is beneficial to improve the compaction degree of the concrete in the cavity 32, so as to improve the structural strength of the concrete column.

[0049] Optionally, the inner diameter of the projection of the stirrup 52 is equal to the outer diameter of the pressure head 20. This arrangement further improves the structural strength of the concrete column. Exemplarily, the outer diameter of the pressure head 20 is specifically equal to D2+2*R1.

[0050] In one possible design, Figure 4 As shown, the side of the cushioning structure 40 facing the mold 30 has a positioning groove 43 , and one end of the mold 30 where the opening 33 is set is inserted into the positioning groove 43 .

[0051] According to the above technical solution, by providing the positioning groove 43, when installing the padding structure 40, the padding structure 40 and the mold 30 can be quickly positioned, so as to facilitate the rapid alignment of the through hole 42 and the opening 33. In addition, since one end of the mold 30 is inserted into the positioning groove 43, the padding structure 40 and the mold 30 have a good limiting effect, thereby improving the connection stability between the padding structure 40 and the mold 30, and further allowing the padding structure 40 to provide stable pressure to the concrete in the area between the stirrup 52 and the inner wall of the cavity 32.

[0052] In some optional embodiments, the mold 30 may be a cylindrical structure of a cylindrical, prismatic or any other shape, and the shape of the positioning groove 43 matches the structural shape of one end of the mold 30 where the opening 33 is provided. Exemplarily, the mold 30 is a cylindrical structure, and the shape of the positioning groove 43 is a disc, so that one end of the mold 30 can be inserted into the positioning groove 43, and the inner wall of the positioning groove 43 and the outer wall of the mold 30 can be limited to make the connection between the padding structure 40 and the mold 30 more stable.

[0053] In some embodiments, when it is necessary to cast a longer concrete column, the required concrete columns can be cast in sequence by means of segmented casting. For example, the concrete required for a concrete column of half the preset length can be first cast into the mold cavity 32, and then the pressure head 20 is extended into the annular structure to compress the concrete in the mold cavity 32 into a first section of concrete column. Then, on the basis of the first section of concrete column, the concrete required for a concrete column of half the preset length is cast into the mold cavity 32, and then the pressure head 20 is extended into the annular structure to compress the first section of concrete column to form a second section of concrete column. In this way, in the process of casting and compressing to form the second section of concrete column, the second section of concrete column is connected to the first end concrete column to form a concrete column of a preset length, and the preset length can be set according to actual needs.

[0054] In one possible design, Figures 5 to 7 As shown, there are multiple molds 30, and the multiple molds 30 are arranged in sequence along the axial direction of the annular structure. Two adjacent molds 30 are detachably connected, and the cavities 32 of two adjacent molds 30 are interconnected. The cushioning structure 40 is detachably installed on the side of the opening 33 of the mold 30 closest to the pressure head 20.

[0055] According to the above arrangement, by setting a plurality of molds 30, and the adjacent two molds 30 are detachably connected, it is convenient to cast the compressed concrete column in sections, and make the structural strength of each section of the concrete column higher, so as to cast a concrete column with a longer length and higher structural strength. Figure 6As shown, each mold 30 is provided with a cavity 32 penetrating along the vertical direction, so that the cavity 32 forms the above-mentioned opening 33 at the top of the corresponding mold 30, and forms a connecting port 34 at the bottom of the corresponding mold 30, so that the cavities 32 of two adjacent molds 30 are connected to each other.

[0056] Alternatively, if Figures 5 to 7 As shown, there are two molds 30, and the two molds 30 are respectively a first mold 30 and a second mold 30. In the process of pouring the compressed concrete column, the pouring can be divided into two times. Before the first pouring and compression, a plurality of longitudinal reinforcements 51 can be installed in a circular arrangement and distribution on the bottom beam 11 of the frame 10 to form an annular structure, and then the stirrups 52 are surrounded on the outer periphery of the annular structure, and then the first mold 30 is sleeved on the outer periphery of the stirrups 52 and installed on the bottom beam 11 of the frame 10, and then the cushioning structure 40 is sleeved on the outer periphery of the stirrups 52, and finally the cushioning structure 40 is installed on the side of the first mold 30 where the opening 33 is set. During the first pouring and compression process, concrete is first poured into the cavity 32 of the first mold 30 until part of the concrete overflows the cavity 32 of the first mold 30 and enters the through hole 42 through the opening 33 on the first mold 30. Finally, the pressure head 20 is extended into the through hole 42 and pressed downward until the overflowing concrete is pushed back into the cavity 32 of the first mold 30. The concrete in the annular structure is compacted by the pressure head 20, and the concrete between the stirrup 52 and the inner wall of the cavity 32 of the first mold 30 is compacted by the cushion structure 40. In this way, the first pouring and compression is completed, and the first section of the concrete column is formed in the first mold 30. After the first pouring and compression is completed, the cushion structure 40 is removed from the first mold 30, the second mold 30 is sleeved on the outer periphery of the stirrup 52 and installed on the first mold 30, and the cushion structure 40 is installed on the side of the second mold 30 where the opening 33 is set. After that, the second pouring and compression is performed. First, concrete is poured into the cavity 32 of the second mold 30 until part of the concrete overflows the cavity 32 of the second mold 30 and enters the through hole 42 through the opening 33 on the second mold 30. Finally, the pressure head 20 is extended into the through hole 42 and pressed downward until the overflowed concrete is pushed back into the cavity 32 of the first mold 30. The concrete in the annular structure is compacted by the pressure head 20, and the concrete between the stirrups 52 and the inner wall of the cavity 32 of the second mold 30 is compacted by the cushion structure 40. In this way, the second pouring and compression is completed, and a second section of the concrete column is formed on the basis of the first section of the concrete column, thereby obtaining a concrete column of the required length. The method of segmented pouring and compressing the concrete column can make the concrete column more compact, thereby effectively improving the structural strength of the concrete column, and effectively reducing or even preventing the deformation of the longitudinal reinforcement 51 and stirrups 52 in the concrete column, thereby improving the service life of the concrete column.

[0057] Optionally, two adjacent molds 30 may be detachably connected by screw connection, clamping connection or any other feasible manner. In one example, two adjacent molds 30 are detachably connected by bolts.

[0058] In one possible design, Figure 7 As shown, the mold 30 includes a plurality of modules 31, which are distributed in an annular array, and two adjacent modules 31 are detachably connected, and the plurality of modules 31 are arranged to form an inner cavity. In this arrangement, by arranging a plurality of modules 31, and detachably connecting two adjacent modules 31, during the assembly process, the plurality of modules 31 can be spliced ​​from the circumference of the annular structure, so that the mold 30 can be sleeved on the outside of the stirrup 52. In this way, the installation process of the mold 30 is simpler and more convenient, which is conducive to improving the assembly efficiency.

[0059] Alternatively, if Figure 7 As shown, in each mold 30 , the number of the modules 31 can be two, and the two modules 31 are interlocked and detachably connected by bolts, and the two modules 31 surround and form a cavity 32 of the corresponding mold 30 .

[0060] In some embodiments, a connecting plate 14 may be provided on the bottom beam 11 of the frame 10, and each module 31 in the mold 30 closest to the bottom beam 11 is detachably connected to the connecting plate 14. Each module 31 in the mold 30 closest to the bottom beam 11 may be detachably connected to the connecting plate 14 by screwing or clamping. Exemplarily, each module 31 in the mold 30 closest to the bottom beam 11 is connected to the connecting plate 14 by bolts.

[0061] In one possible design, Figure 4 or Figure 7 As shown, the elevation structure 40 includes a plurality of connection blocks 41 , which are distributed in a ring array, and two adjacent connection blocks 41 are detachably connected, and the plurality of connection blocks 41 are arranged around to form a through hole 42 .

[0062] According to the above arrangement, by providing a plurality of connection blocks 41, and two adjacent connection blocks 41 are detachably connected, during the assembly process, the plurality of connection blocks 41 can be spliced ​​from the circumferential side of the annular structure, so that the padding structure 40 can be sleeved on the outside of the stirrup 52. In this way, the installation process of the padding structure 40 is simpler and more convenient, which is conducive to improving the assembly efficiency.

[0063] Optionally, the number of the connecting blocks 41 is two, the two connecting blocks 41 are interlocked, and the two connecting blocks 41 are surrounded to form a through hole 42. In this arrangement, it is only necessary to connect the two connecting blocks 41 to each other to form the padding structure 40. Such an arrangement can reduce the number of times that two adjacent connecting blocks 41 are connected to each other, thereby further improving the assembly efficiency. Optionally, two adjacent connecting blocks 41 can also be detachably connected by bolts. In some embodiments, each connecting block 41 is provided with a semi-disc-shaped groove body on the side facing the mold 30. When the two connecting blocks 41 are interlocked, the groove bodies of the two connecting blocks 41 jointly form the above-mentioned positioning groove 43, and the side of the mold 30 closest to the pressure head 20 where the opening 33 is provided extends into the positioning groove 43. Each connecting block 41 and each module 31 in the mold 30 closest to the pressure head 20 can also be detachably connected by bolts.

[0064] The above description is only an optional embodiment of the present application and is not intended to limit the present application. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present application should be included in the protection scope of the present application.

Claims

1. A casting compression device, characterized in that: It includes a frame, a pressure head, a mold, a padding structure, a plurality of longitudinal ribs and at least one hoop, the mold is installed on the frame, and a cavity with an opening at one end is formed on the mold; the padding structure is installed on a side of the mold where the opening is set, and the padding structure has a through hole, and the inner diameter of the through hole is smaller than the inner diameter of the opening; a plurality of the longitudinal ribs are inserted into the cavity, and the plurality of the longitudinal ribs are spaced apart along the circumferential direction of the cavity to form an annular structure, the hoop surrounds the outer circumference of the annular structure, the pressure head is movably connected to the frame, and the pressure head can extend into or move out of the annular structure through the through hole.

2. The pouring compression device according to claim 1, characterized in that: On a projection plane perpendicular to the axis of the annular structure, the projection of the stirrup is annular, and the outer diameter of the projection of the stirrup is equal to the inner diameter of the through hole.

3. The pouring and compression device according to claim 2, characterized in that: The pressure head is provided with an avoidance groove, and the number of the avoidance grooves is multiple, and the multiple avoidance grooves are arranged in a one-to-one correspondence with the multiple longitudinal ribs; the avoidance groove is used for allowing the corresponding longitudinal ribs to pass through when the pressure head moves.

4. The pouring and compression device according to claim 3, characterized in that: The inner diameter of the projection of the stirrup is equal to the outer diameter of the pressure head.

5. The pouring and compression device according to claim 1, characterized in that: The side of the cushioning structure facing the mold is provided with a positioning groove, and one end of the mold provided with the opening is inserted into the positioning groove.

6. The pouring and compression device according to claim 1, characterized in that: The padding structure includes a plurality of connection blocks, which are distributed in a ring array, and two adjacent connection blocks are detachably connected, and the plurality of connection blocks are arranged around the via hole.

7. The pouring and compression device according to claim 6, characterized in that: The number of the connecting blocks is two, the two connecting blocks are buckled with each other, and the two connecting blocks surround and form the via hole.

8. The pouring and compression device according to any one of claims 1 to 7, characterized in that: There are multiple molds, and the multiple molds are arranged in sequence along the axial direction of the annular structure. Two adjacent molds are detachably connected, and the cavities of two adjacent molds are interconnected. The cushioning structure is detachably installed on the side of the opening of the mold closest to the pressure head.

9. The pouring and compression device according to claim 8, characterized in that: The mold includes a plurality of modules, which are distributed in a ring array, and two adjacent modules are detachably connected, and the plurality of modules are arranged to surround the mold cavity.

10. The pouring and compression device according to any one of claims 1 to 7, characterized in that: The stirrups are spirally wound around the outer circumference of the annular structure; or, the stirrups are annular structures, and there are multiple stirrups, which are spaced apart along the axial direction of the annular structure.

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